Project investment growth from a lump sum and regular contributions.
Added every month
Annual rate
Projected value
$271,648.60
$95,000.00 paid in, $176,648.60 growth
| Year | Paid in | growth | Balance |
|---|---|---|---|
| 1 | $8,600.00 | $479.23 | $9,079.23 |
| 2 | $12,200.00 | $1,253.34 | $13,453.34 |
| 3 | $15,800.00 | $2,343.66 | $18,143.66 |
| 4 | $19,400.00 | $3,773.04 | $23,173.04 |
| 5 | $23,000.00 | $5,566.00 | $28,566.00 |
| 6 | $26,600.00 | $7,748.81 | $34,348.81 |
| 7 | $30,200.00 | $10,349.66 | $40,549.66 |
| 8 | $33,800.00 | $13,398.78 | $47,198.78 |
| 9 | $37,400.00 | $16,928.56 | $54,328.56 |
| 10 | $41,000.00 | $20,973.75 | $61,973.75 |
| 11 | $44,600.00 | $25,571.61 | $70,171.61 |
| 12 | $48,200.00 | $30,762.10 | $78,962.10 |
| 13 | $51,800.00 | $36,588.05 | $88,388.05 |
| 14 | $55,400.00 | $43,095.41 | $98,495.41 |
| 15 | $59,000.00 | $50,333.42 | $109,333.42 |
| 16 | $62,600.00 | $58,354.92 | $120,954.92 |
| 17 | $66,200.00 | $67,216.54 | $133,416.54 |
| 18 | $69,800.00 | $76,979.00 | $146,779.00 |
| 19 | $73,400.00 | $87,707.45 | $161,107.45 |
| 20 | $77,000.00 | $99,471.69 | $176,471.69 |
| 21 | $80,600.00 | $112,346.62 | $192,946.62 |
| 22 | $84,200.00 | $126,412.52 | $210,612.52 |
| 23 | $87,800.00 | $141,755.49 | $229,555.49 |
| 24 | $91,400.00 | $158,467.86 | $249,867.86 |
| 25 | $95,000.00 | $176,648.60 | $271,648.60 |
What this assumes
Starting out
Small lump sum, monthly additions
5000Long horizon
Twenty-five years of growth
25Larger portfolio
A bigger starting balance
100000What you have invested today, or zero if you are beginning now.
Monthly investing usually contributes more to the final figure than the starting sum.
Use a rate you can justify. Long-run global equity averages have been around 7% nominal, but any single decade can differ wildly.
Seeing how much of the final balance you actually paid in is what makes compounding tangible.
The curve, not the endpoint, is the useful output — it shows when growth starts to dominate.
A single assumed rate is a simplification, and the tool says so rather than presenting a projection as a forecast.
Model what an investment could become over time given a starting amount, ongoing contributions and an expected annual return. The breakdown separates what you contributed from what growth added, which is the figure that makes the case for time in the market. A projection at a constant rate is a planning tool, not a forecast — real returns arrive unevenly, and a sequence of poor early years produces a very different outcome from the same average delivered smoothly.
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